most games with 15+ strikeouts by pitcher 1950 to 1989

Between the 1950 and 1989 seasons, Nolan Ryan had the most games pitched when striking out 15+ batters, with 23 games.

Interpreted as:

Most regular-season games with 15+ strikeouts by pitcher 1950 to 1989

	NAME	G	SO	W	L	W%	GS	ERA	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Nolan Ryan N. Ryan	23	376	18	2	.900	23	1.71	16	4	0	215.2	109	41	48	6	108	8	0	1	864	12	15.69	4.51	3.48	0.25	43.5	12.5	1.01	.281	2.00	4.55
2	Sandy Koufax S. Koufax	8	129	5	2	.714	8	1.96	5	0	0	82.2	51	18	21	9	33	1	0	5	331	3	14.04	3.59	3.91	0.98	39.0	10.0	1.02	.264	2.29	5.55
3	Sam McDowell S. McDowell	6	92	4	1	.800	6	1.32	3	0	0	54.2	29	8	11	1	19	1	1	2	208	2	15.15	3.13	4.84	0.16	44.2	9.1	0.88	.295	1.81	4.77
4	Roger Clemens R. Clemens	5	82	4	0	1.000	5	0.82	4	1	0	44.0	21	4	5	2	3	1	0	0	157	0	16.77	0.61	27.33	0.41	52.2	1.9	0.55	.275	1.02	4.30
5	Tom Seaver T. Seaver	5	81	4	0	1.000	5	0.94	4	1	0	48.0	14	5	5	3	10	0	0	1	168	0	15.19	1.88	8.10	0.56	48.2	6.0	0.50	.149	0.94	2.63
6	Steve Carlton S. Carlton	5	82	1	3	.250	5	3.64	4	0	0	42.0	44	17	17	5	13	0	0	0	177	2	17.57	2.79	6.31	1.07	46.3	7.3	1.36	.506	3.64	9.43
7	Dwight Gooden D. Gooden	3	48	2	1	.667	3	0.35	3	2	0	26.0	19	1	2	0	3	0	0	0	98	1	16.62	1.04	16.00	0.00	49.0	3.1	0.85	.404	0.69	6.58
8	Frank Tanana F. Tanana	3	47	2	0	1.000	3	1.93	2	0	0	28.0	25	6	6	3	6	1	0	0	113	1	15.11	1.93	7.83	0.96	41.6	5.3	1.11	.393	1.93	8.04
9	J.R. Richard	3	45	2	0	1.000	3	1.55	2	0	0	29.0	20	5	6	1	7	0	0	1	116	1	13.97	2.17	6.43	0.31	38.8	6.0	0.93	.302	1.86	6.21
10	Mickey Lolich M. Lolich	3	47	2	0	1.000	3	1.67	2	0	0	27.0	14	5	5	2	8	3	0	0	104	0	15.67	2.67	5.88	0.67	45.2	7.7	0.81	.273	1.67	4.67
11	Bob Gibson B. Gibson	3	46	2	1	.667	3	1.67	3	0	0	27.0	15	5	8	1	5	0	0	0	102	0	15.33	1.67	9.20	0.33	45.1	4.9	0.74	.280	2.67	5.00
12	Luis Tiant L. Tiant	3	51	3	0	1.000	3	0.96	3	1	0	28.0	18	3	3	2	6	0	0	0	106	0	16.39	1.93	8.50	0.64	48.1	5.7	0.86	.340	0.96	5.79
13	Don Wilson D. Wilson	3	49	3	0	1.000	3	1.00	3	1	0	27.0	11	3	3	1	7	0	0	1	98	2	16.33	2.33	7.00	0.33	50.0	7.1	0.67	.244	1.00	3.67
14	Bob Veale B. Veale	3	47	1	1	.500	3	0.59	2	1	0	30.1	19	2	2	0	12	0	0	4	121	0	13.95	3.56	3.92	0.00	38.8	9.9	1.02	.306	0.59	5.64
15	Mark Langston M. Langston	2	31	2	0	1.000	2	1.00	2	0	0	18.0	11	2	3	1	5	1	0	0	71	1	15.50	2.50	6.20	0.50	43.7	7.0	0.89	.303	1.50	5.50
16	Mario Soto M. Soto	2	30	2	0	1.000	2	1.50	2	0	0	18.0	11	3	3	1	1	0	0	0	65	1	15.00	0.50	30.00	0.50	46.2	1.5	0.67	.303	1.50	5.50
17	Jerry Koosman J. Koosman	2	30	1	0	1.000	2	0.47	1	0	0	19.0	14	1	1	0	4	0	0	1	74	0	14.21	1.89	7.50	0.00	40.5	5.4	0.95	.350	0.47	6.63
18	Jim Maloney J. Maloney	2	34	1	1	.500	2	0.47	1	0	0	19.1	4	1	1	1	5	0	0	0	66	1	15.83	2.33	6.80	0.47	51.5	7.6	0.47	.115	0.47	1.86
19	Camilo Pascual C. Pascual	2	30	2	0	1.000	2	0.50	2	1	0	18.0	8	1	1	1	4	0	0	0	67	0	15.00	2.00	7.50	0.50	44.8	6.0	0.67	.219	0.50	4.00
20	Herb Score H. Score	2	31	2	0	1.000	2	1.00	2	0	0	18.0	7	2	2	1	11	0	0	0	70	1	15.50	5.50	2.82	0.50	44.3	15.7	1.00	.222	1.00	3.50
21	Warren Spahn W. Spahn	2	33	1	1	.500	2	1.13	2	1	0	24.0	10	3	3	1	4	0	0	0	86	0	12.38	1.50	8.25	0.38	38.4	4.7	0.58	.188	1.13	3.75
22	Sid Fernandez S. Fernandez	1	16	0	1	.000	1	3.38	1	0	0	8.0	6	3	3	1	0	0	0	0	30	0	18.00	0.00		1.13	53.3	0.0	0.75	.385	3.38	6.75
23	Chuck Finley C. Finley	1	15	1	0	1.000	1	2.00	1	0	0	9.0	7	2	3	1	1	0	0	0	36	0	15.00	1.00	15.00	1.00	41.7	2.8	0.89	.316	3.00	7.00
24	Mike Moore M. Moore	1	16	1	0	1.000	1	1.00	1	0	0	9.0	5	1	1	0	2	0	0	0	34	0	16.00	2.00	8.00	0.00	47.1	5.9	0.78	.313	1.00	5.00
25	Greg Swindell G. Swindell	1	15	1	0	1.000	1	2.00	1	0	0	9.0	11	2	2	0	2	0	0	0	39	0	15.00	2.00	7.50	0.00	38.5	5.1	1.44	.500	2.00	11.00